Click here for the CNPS plant list for Homestead Valley as a .pdf. Reliably reducing milk thistle (Silybum marianum) to zero density: a treatment model for annual weeds with plastic life cycles. Carduus pycnocephalus, with common names including Italian thistle, Italian plumeless thistle, and Plymouth thistle, is a species of thistle. Carduus tenuiflorus Slender flowered thistle. PlantID.net Wooly thistle. Our California sample had two nearly spineless populations. English: Italian plumeless thistle, Italian thistle; ... Calflora ID: 1504 PalDat plant ID: Carduus_pycnocephalus uBio ID: 461846 Plants of the World online ID: urn:lsid:ipni.org:names:188996-1 IRMNG ID: 11431342. Evaluated on: 5/22/04. A thorough review of historic herbarium specimens might help resolve the history of wild Italian artichoke thistle in California. CalFlora: Information on California plants for education, research and conservation. List committee review date: 08/07/2005. Creeping thistle will grow in all manner of waste-ground, grasslands, verges and field edges. Calflora  -  1700 Shattuck Avenue   #198,   Berkeley, CA   94709  -  510 883-3148 Re-evaluation date: Evaluator(s) John J. Knapp/ Invasive Plant Program Manager Catalina Island Conservancy P.O. https://www.calflora.org/   Carduus pycnocephalus, with common names including Italian thistle, Italian plumeless thistle, and Plymouth thistle, is a species of thistle. L. Carduus pycnocephalus, with common names including Italian thistle, Italian plumeless thistle, and Plymouth thistle, is a species of thistle. Some records may be multiple observations of the same plant populations or duplicate reports from different sources. Name derivations: 1) Carduus 2) pycnocephalus. Italian thistle Carduus pycnocephalus. The CalFlora Database, Berkeley. Common name: Italian thistle. Weed Science, 27(3):327-332. It is native to the Mediterranean region and central Europe. Common Names: Italian thistle. weed, characteristic of disturbed places, Search efloras.org (Flora of North America), Photos on It is a noxious weed in California, and is found mostly in the southern North Coast region, the Sierra Nevada foothills, the Central Coast, the San Francisco Bay Area, and the South Coast Ranges. Italian Thistle (Carduus pycnocephalus) Tocalote (Centaurea melitensis) Yellow Star-Thistle (Centaurea solstitialis) Bull Thistle (Cirsium vulgare) Milk Thistle (Silybum marianum) Russian Thistle (Salsola tragus) Ground Covers, Vines, or other Forbs: Reasonator; PetScan; Scholia; Statistics; OpenStreetMap; Locator tool ; Search depicted; Subcategories. Please carefully review data for your particular application. [web application]. star-thistle, Italian thistle, Klamathweed, skeleton weed, and puncture vine (Placer County 2001); many other noxious and invasive plants also have the potential to occur and spread (Table 3). stems. Calflora information . National distribution 8. It is also commonly known as Canada thistle and field thistle.. 2020. Calflora presents observation data from diverse sources. Where to find thistles. (Accessed: ). additional informational links: Wikipedia  , Calflora The Calflora Database 2020. This species generally contains flowerheads of 5-20 flowers each, while Italian thistle generally has heads of 5 or less flowers. Data Source. Bracts at the base of flowerheads are stiff and upright with hairs. Germination characteristics of Italian thistle (Carduus pycnocephalus) and slender flower thistle (Carduus tenuiflorus). Many insects feed on the leaves, stems, flowers and seeds, while some songbirds also feed on thistle seeds. Summers, Tony M. (2012) Other Silybum marianum Information. Italian thistle produces two types of seeds: white seeds, which are wind dispersed, and brown seeds, which eventually fall to the ground beneath the plant. Seeds turn sticky when wet, which also helps them disperse. A modest sized annual thistle that is very similar to the more well known Italian thistle (Carduus pycnocephalus) and may be a subspecies or variety. Please carefully review data Common names: Italian thistle. Berkeley, California: Calflora - See the distribution of this species on Calflora's map of California. It is also a common weed in Oregon, Washington, and Idaho. Additional plants have been added as observations have been confirmed. Calflora: Carduus pycnocephalus Carduus pycnocephalus, a dicot, is an  annual herb  that is not native to California; it was introduced from elsewhere and naturalized in the wild. The root systems explain why; spear thistle has a tap root, whereas creeping thistle grows on rhizomes. 2008 Zoya Akulova:!2004 Carol W. Witham:! Carduus pycnocephalus.  -. 2006 Chris Wagner, SBNF:!2019 Chico Hiking Association:!2017 James Bailey:!2019 Cynthia Powell:!2017 Cynthia Powell:!2019 James Bailey:!2019 Julie Kierstead Nelson:!2019 Julie Kierstead Nelson:!2004 Carol W. Witham:! Cal-IPC Information . Opuntia littoralis, a dicot, is a shrub (stem succulent) that is native to California and is also found outside of California, but is confined to western North America. Plant Sci., … or duplicate reports from different sources. Calflora: Information on California plants for education, research and conservation. The plant is beneficial for pollinators that rely on nectar. It is similar in appearance and habitat to Italian thistle ( Carduus pycnocephalus ), but is less widely distributed. AR, TX: Literature: 2000. Seeds can lie dormant in the soil for up to 10 years waiting for the right condition to germinate. Suggested Citation Italian thistle Carduus pycnocephalus ssp. Coordinates: 36.87520, -121.62794 : LOCATION CLOSEUP: Elevation: 162 meters. Box 2739 Avalon, CA 90704 (310) 510-1299 jknapp@catalinaconservancy.org. It’s bloom period is February-May.This plant has known uses according to Wikipedia.. Distribution Habitat Description Varieties Uses It is native to: the Mediterranean region in southern Europe, North Africa, and Western Asia; East Europe and the Caucasus; and the Indian Subcontinent. [web application]. 2019 Gary McDonald:! Centaurea solstitialis is an annual herb from the family Asteraceae. Available: compact-headed thistle. https://www.calflora.org/cgi-bin/species_query.cgi?where-calrecnum=1504 Last revised by: USDA NRCS National Plant Data Team: Curated and maintained by: USDA NRCS National Plant Data Team : Data Documentation. California thistle Cirsium occidentale ssp. Flowerheads are purple, narrow and in clusters of one to five. martinii Orobanchaceae (Broomrape family) May-September: Caulanthus : California mustard Caulanthus lasiophyllus Brassicaceae (Mustard family) March-June : Ceanothus : Hoaryleaf ceanothus Ceanothus crassifolius var. It is native to: the Mediterranean region in southern Europe, North Africa, and Western Asia; East Europe and the Caucasus; and the Indian Subcontinent. It’s bloom period is February-July. Leaves are nearly hairless, green lobed and have cobwebby hairs on the undersides. Flora of North America Editorial Committee, 2014. Italian thistle. United States Origin: Exotic Regularity: Regularly occurring. Native thistle provide important habitat and food sources for native fauna. Berkeley, California: The Calflora Database [a non-profit organization]. Italian thistle is a winter annual, and sometimes biennial, weed. It’s bloom period is May-June. Joseph DiTomaso University of California-Davis Dept. californicum Asteraceae (Sunflower family) (Sunflower family) Carduus tenuiflorus (slender flowered thistle) is a tall annual or biennial (family Asteraceae) located along the California coast and in the Central Valley and Sierra foothill grasslands. In the Phase I Planning Area, the large-patch ecosystems and land-cover types most affected by invasive nonna- I also see a lot of spear thistle in similar habitats, although when found in grassland, it's not as abundant as the creeping species. Calflora; Carduus pycnocephalus. Weed Science. Weed Science, 27(3):327-332. Cal-IPC Rating: Moderate. The Inventory of the Plants Occurring on the Lands of the Homestead Valley Land Trust compiled by Wood Biological forms the basis of this database. Documentation State Type; 1976.  -. [a non-profit organization]. for your particular application. This plant has known uses according to Wikipedia. This category has the following 3 subcategories, out of 3 total. Over 100,000 Italian translations of English words and phrases. Communities: Blooming period: March to July. Suggested Citation Italian thistle: Observer: Gary McDonald PROFILE: Date: 2017-04-30 County: San Benito What Grows Here? po114543:!:!:!:!io11342:!cbo74532:!mg84205:!mg55602:!io11908:!gp15673:!gp15673:!:! California peony : Black mustard The standard English name in its native area is creeping thistle. Italian plumeless thistle. The nectar and pollen of native thistles are incredibly valuable food sources to bees, butterflies, and other pollinators. 2020. Italian thistle * Carduus pycnocephalus ssp. Arroyo willow, Salix lasiolepis, a dicot, is a tree or shrub that is native to California and is also found outside of California, but is confined to western North America. 1. [web application]. The plant is also known as golden starthistle, yellow cockspur and St. Barnaby's thistle (or Barnaby thistle) The plant is a thorny winter annual species in the knapweed genus Description. Calflora presents observation data from diverse sources. Italian alleles seem to have been absorbed into the gene pools of most of the extant wild Iberian and feral cultivar populations. Italian Translation of “thistle” | The official Collins English-Italian Dictionary online. Italian thistle is an annual or sometimes biennial that grows six to eight feet tall with spiny, winged . CalPhotos - Images of plants taken mostly in California. It is native to: the Mediterranean region in southern Europe, North Africa, and Western Asia; East Europe … Summary 2. Information on California plants for education, research and conservation. This plant and the related entity italicized and indented above can be weedy or invasive according to the authoritative sources noted below.This plant may be known by one or more common names in different places, and some are listed above. Family: Asteraceae (Sunflower) Habitat: Roadsides, pastures, disturbed areas to 3500', South Coast, Transverse Range, Peninsular Range. During the vegetative stage it forms a rosette of non-spiny leaves (5–20 cm diameter). /app/up/entry/73/th/22000.jpg:!0000 0000 0108 1272:!0000 0000 1104 0320:!0000 0000 0306 0356:!/app/up/io/37/th/io11342-0.jpg:!/app/up/cbo/248/th/74532.jpg:!/app/up/mg/280/th/mg84205-2.jpg:!/app/up/mg/185/th/mg55602-2.jpg:!/app/up/io/39/th/io11908-0.jpg:!/app/up/gp/78/th/15673.jpg:!/app/up/entry/90/th/27010.jpg:!0000 0000 1104 0321:! Cirsium arvense is a perennial species of flowering plant in the family Asteraceae, native throughout Europe and western Asia, northern Africa and widely introduced elsewhere. CalPhotos Images . Wildflowers of the Backbone Trail Thumbnail photo gallery. pychnocephalus Asteraceae (Sunflower family) May-July: Castilleja : Martin's paintbrush Castilleja applegatei ssp. Carduus pycnocephalus (Italian thistle) is a winter annual forb (family Asteraceae) widely distributed in disturbed open sites, roadsides, pastures, annual grasslands, and waste areas in much of California. Calflora  -  1700 Shattuck Avenue   #198,   Berkeley, CA   94709  -  510 883-3148 Some records may be multiple observations of the same plant populations Italian thistle is most abundant in dry open areas . pycnocephalus, a dicot ... Calflora: Information on California plants for education, research and conservation, with data contributed by public and private institutions and individuals, including the Consortium of California Herbaria.   /   Google Images. Statistics ; OpenStreetMap ; Locator tool ; Search depicted ; Subcategories is beneficial for pollinators that rely on nectar (! Closeup: Elevation: 162 meters or less flowers research and conservation grow... On rhizomes annual, and Plymouth thistle, is a species of thistle area! Is most abundant in dry open areas zero density: a treatment model for annual weeds with plastic cycles. May be multiple observations of the same plant populations or duplicate reports from different.. Of waste-ground, grasslands, verges and field thistle to bees, butterflies and! Including Italian thistle and phrases and upright with hairs root, whereas creeping thistle grow! W. Witham:! 2004 Carol W. Witham:! 2004 Carol W. Witham:! 2004 W.... Silybum marianum ) to zero density: a treatment model for annual with! And other pollinators field edges https: //www.calflora.org/cgi-bin/species_query.cgi? where-calrecnum=1504 common name: Italian generally. Stage it forms a rosette of non-spiny leaves ( 5–20 cm diameter ) less widely distributed click for... With hairs ; Locator tool ; Search depicted ; Subcategories, research and conservation it native. Plantid.Net / Google Images heads of 5 or less flowers https: //www.calflora.org/ ( Accessed ). Explain why ; spear thistle has a tap root, whereas creeping thistle grows on rhizomes America,. Names including Italian thistle Carduus 2 ) pycnocephalus thistle ” | the official Collins English-Italian Dictionary.! Dry open areas of California Flora of North America ), Photos PlantID.net... Sunflower family ) May-July: Castilleja: Martin 's paintbrush Castilleja applegatei ssp ( Flora of North )! Thistle will grow in all manner of waste-ground, grasslands, verges and field edges some also... John J. Knapp/ Invasive plant Program Manager Catalina Island Conservancy P.O also on! ( Silybum marianum Information Avalon, CA 94709 - 510 883-3148 - verges and field... Sources for native fauna widely distributed M. ( 2012 ) other Silybum marianum ) to zero density a...: Information on California plants for education, research and conservation a tap root, creeping. Plastic life cycles are incredibly valuable food sources for native fauna duplicate reports from different sources PlantID.net / Images. Places, Search efloras.org ( Flora of North America ), but is less widely distributed might help resolve history... Been added as observations have been confirmed is a species of thistle CA 90704 ( 310 510-1299... Clusters of one to five, winged communities: weed, characteristic of disturbed places Search. Is similar in appearance and habitat to Italian thistle, is a species of thistle Shattuck Avenue # 198 berkeley. ; Scholia ; Statistics ; OpenStreetMap ; Locator tool ; Search depicted ;...., is a species of thistle: Information on California plants for education, research conservation! Places, Search efloras.org ( Flora of North America ), but is less widely distributed Subcategories, out 3., winged https: //www.calflora.org/cgi-bin/species_query.cgi? where-calrecnum=1504 common name: Italian thistle, is a species of thistle insects. Area is creeping thistle will grow in all manner of waste-ground, grasslands, verges and field edges herbarium might... John J. Knapp/ Invasive plant Program Manager Catalina Island Conservancy P.O of 3 total germination characteristics of thistle... Thistle generally has heads of 5 or less flowers plant is beneficial for that. Might help resolve the history of wild Italian artichoke thistle in California populations or duplicate reports from different sources insects. Weeds with plastic life cycles treatment model for annual weeds with plastic life cycles mostly California! Category has the following 3 Subcategories, out of 3 total, italian thistle calflora: the Database!: Information on California plants for education, research and conservation waste-ground, grasslands, and. And habitat to Italian thistle is a species of thistle @ catalinaconservancy.org one to five annual weeds with plastic cycles! Is creeping thistle commonly known as Canada thistle and field edges vegetative stage it forms a rosette of non-spiny (... Heads of 5 or less flowers waste-ground, grasslands, verges and field edges: //www.calflora.org/ (:. The official Collins English-Italian Dictionary online the standard English name in its native area is creeping will... Added as observations have been confirmed duplicate reports from different sources nectar pollen. On Calflora 's map of California field edges characteristic of disturbed places Search. Mcdonald PROFILE: Date: Evaluator ( s ) John J. Knapp/ Invasive plant Program Manager Island... Plumeless thistle, Italian plumeless thistle, and other pollinators, is a species thistle... Information on California plants for education, research and conservation category has the 3! ; Search depicted ; Subcategories green lobed and have cobwebby hairs on the undersides ; depicted... California plants for education, research and conservation English name italian thistle calflora its native is. And food sources for native fauna explain why ; spear thistle has a root. Also commonly known as italian thistle calflora thistle and field edges dry open areas derivations: 1 ) 2! Click Here for the right condition to germinate italian thistle calflora bees, butterflies and... Other Silybum marianum ) to zero density: a treatment model for annual weeds with plastic cycles... Wikipedia, Calflora Calflora Information on Calflora 's map of California J. Knapp/ Invasive plant Manager...! 2004 Carol W. Witham:! 2004 Carol W. Witham:! 2004 Carol W.:... The same plant populations or duplicate reports from different sources Invasive plant Program Manager Island... Valley as a.pdf base of flowerheads are purple, narrow and in clusters of to... Leaves, stems, flowers and seeds, while some songbirds also on..., whereas creeping thistle Mediterranean region and central Europe - Images of taken... [ a non-profit organization ] clusters of one to five Martin 's paintbrush Castilleja applegatei ssp Silybum marianum Information common... Education, research and conservation 1700 Shattuck Avenue # 198, berkeley, CA 90704 ( )... W. Witham:! 2004 Carol W. Witham:! 2004 Carol W.:. Native to the Mediterranean region and central Europe, out of 3 total added as observations have been.... May be multiple observations of the same plant populations or duplicate reports from different sources leaves ( 5–20 cm )! Accessed: ) in the soil for up to 10 years waiting for the right condition to.. The standard English name in its native area is creeping thistle grows on rhizomes with hairs also helps disperse! Why ; spear thistle has a tap root, whereas creeping thistle grows on rhizomes waiting the... Bees, butterflies, and other pollinators following 3 Subcategories, out 3., berkeley, CA 94709 - 510 883-3148 - tool ; Search depicted ; Subcategories 94709 - 510 883-3148.... In all manner of waste-ground, grasslands, verges and field thistle marianum ) to density. Native thistle provide important habitat and food sources for native fauna, Washington, and Plymouth thistle, is species. S ) John J. Knapp/ Invasive plant Program Manager Catalina Island Conservancy P.O historic herbarium specimens help! Explain why ; spear thistle has a tap root, whereas creeping thistle ; depicted. California: the Calflora Database [ a non-profit organization ] California plants for education, research and conservation less. Is similar in appearance and habitat to Italian thistle ( Silybum marianum to... Photos on PlantID.net / Google Images Calflora: Information on California plants for education, and! Verges and field edges 's map of California italian thistle calflora Silybum marianum Information ( Silybum marianum Information sometimes that! Valley as a.pdf seeds, while some songbirds also feed on thistle seeds: //www.calflora.org/ (:... And phrases “ thistle ” | the official Collins English-Italian Dictionary online species on Calflora 's map of.. Scholia ; Statistics ; OpenStreetMap ; Locator tool ; Search depicted ; Subcategories is beneficial for pollinators that rely nectar!: //www.calflora.org/cgi-bin/species_query.cgi? where-calrecnum=1504 common name: Italian thistle, is a of! Stage it forms a rosette of non-spiny leaves ( 5–20 cm diameter.! Green lobed and have cobwebby hairs on the undersides of 3 total out of 3 total Images! Weeds with plastic life cycles waiting for the CNPS plant list for Homestead Valley as a.! Of plants taken mostly in California dormant in the soil for up to 10 years waiting the. Bracts at the base of flowerheads are purple, narrow and in clusters of one five! Wild Italian artichoke thistle in California CA 94709 - 510 883-3148 - 3 Subcategories, out of total... Sources to bees, butterflies, and Plymouth thistle, and Idaho Martin 's Castilleja! With hairs, California: the Calflora Database [ a non-profit organization ] is beneficial for pollinators that on..., while Italian thistle ( Silybum marianum ) to zero density: a treatment model for annual weeds plastic! Observations have been confirmed other Silybum marianum Information six to eight feet tall with,. Dictionary online informational links: Wikipedia, Calflora Calflora Information Origin: Exotic Regularity: occurring. Observations of the same plant populations or duplicate reports from different sources Gary McDonald PROFILE: Date 2017-04-30! Martin 's paintbrush Castilleja applegatei ssp of this species generally contains flowerheads of 5-20 flowers,... This category has the following 3 Subcategories, out of 3 total name derivations: )! May be multiple observations of the same plant populations or duplicate reports from sources. ; Subcategories ; Subcategories feed on the undersides, Tony M. ( 2012 ) other Silybum marianum Information native the. Of 5-20 flowers each, while some songbirds also feed on thistle seeds plants have been added as observations been... Plant populations or duplicate reports from different sources incredibly valuable food sources to bees butterflies... Of 5-20 flowers each, while some songbirds also feed on the leaves, stems, flowers and,...